From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Bjorn Andersson Subject: [PATCH v2 1/6] rpmsg: glink: Fix reuse intents memory leak issue Date: Fri, 4 Oct 2019 15:26:57 -0700 Message-Id: <20191004222702.8632-2-bjorn.andersson@linaro.org> In-Reply-To: <20191004222702.8632-1-bjorn.andersson@linaro.org> References: <20191004222702.8632-1-bjorn.andersson@linaro.org> To: Ohad Ben-Cohen , Bjorn Andersson Cc: linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org List-ID: From: Arun Kumar Neelakantam Memory allocated for re-usable intents are not freed during channel cleanup which causes memory leak in system. Check and free all re-usable memory to avoid memory leak. Fixes: 933b45da5d1d ("rpmsg: glink: Add support for TX intents") Cc: stable@vger.kernel.org Tested-by: Srinivas Kandagatla Signed-off-by: Arun Kumar Neelakantam Reported-by: Srinivas Kandagatla Signed-off-by: Bjorn Andersson --- Changes since v1: - None drivers/rpmsg/qcom_glink_native.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c index 621f1afd4d6b..9355ce26fd98 100644 --- a/drivers/rpmsg/qcom_glink_native.c +++ b/drivers/rpmsg/qcom_glink_native.c @@ -241,10 +241,19 @@ static void qcom_glink_channel_release(struct kref *ref) { struct glink_channel *channel = container_of(ref, struct glink_channel, refcount); + struct glink_core_rx_intent *tmp; unsigned long flags; + int iid; spin_lock_irqsave(&channel->intent_lock, flags); + idr_for_each_entry(&channel->liids, tmp, iid) { + kfree(tmp->data); + kfree(tmp); + } idr_destroy(&channel->liids); + + idr_for_each_entry(&channel->riids, tmp, iid) + kfree(tmp); idr_destroy(&channel->riids); spin_unlock_irqrestore(&channel->intent_lock, flags); -- 2.18.0